Home / 22,148.60-33,214.35-8,638.10

Finding the Fourth Proportional to 22,148.60, 33,214.35 and 8,638.10

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Solution

The fourth proportional to 22,148.60, 33,214.35 and 8,638.10 is: 12,953.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,148.60 : 33,214.35 = 8,638.10 : x
  2. Step 2: Convert to fraction form
    22,148.60/33,214.35 = 8,638.10/x
  3. Step 3: Cross multiply
    22,148.60x = 33,214.35 × 8,638.10
  4. Step 4: Simplify right side
    22,148.60x = 286,908,710.66
  5. Step 5: Solve for x
    x = 286,908,710.66/22,148.60
  6. Step 6: Final answer
    x = 12,953.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.